US10650989B2 - Waterproof assembly for keyboard switch, keyboard and electronic apparatus - Google Patents

Waterproof assembly for keyboard switch, keyboard and electronic apparatus Download PDF

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Publication number
US10650989B2
US10650989B2 US16/205,123 US201816205123A US10650989B2 US 10650989 B2 US10650989 B2 US 10650989B2 US 201816205123 A US201816205123 A US 201816205123A US 10650989 B2 US10650989 B2 US 10650989B2
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Prior art keywords
conductive member
waterproof
accommodating groove
member accommodating
groove
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US16/205,123
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English (en)
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US20190096608A1 (en
Inventor
Fuxi WU
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Dongguan Kaihua Electronics Co Ltd
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Dongguan Kaihua Electronics Co Ltd
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Assigned to DONGGUAN CITY KAIHUA ELECTRONICS CO., LTD reassignment DONGGUAN CITY KAIHUA ELECTRONICS CO., LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WU, Fuxi
Publication of US20190096608A1 publication Critical patent/US20190096608A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/86—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the casing, e.g. sealed casings or casings reducible in size
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/62—Lubricating means structurally associated with the switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed

Definitions

  • the present disclosure relates to keyboard switch, and more particularly, to a waterproof assembly for a keyboard switch.
  • a keyboard switch is a switching means applied and disposed on a keyboard.
  • Primary structure of a keyboard switch includes a base, a top cover, a static plate, a movable plate driving member, a movable plate, and a driving plunger.
  • the top cover and the base are combined to define a receiving chamber.
  • the static plate, the movable plate, and the driving plunger are disposed inside the receiving chamber, and an end portion of the driving plunger is exposed outside the receiving chamber.
  • the driving plunger is moved up and down by pressing and operating the driving plunger, the movable plate driving member is pushed by the driving plunger, and the movable plate driving member acts on the movable plate, thereby making the movable plate and the static plate contact or detach from each other.
  • objectives of embodiments of the present disclosure are to provide a waterproof assembly for keyboard switch with waterproof function.
  • the waterproof assembly for keyboard switch includes a body element, a waterproof cover, a sliding channel, and a pushing rod.
  • the body element defines a plunger guiding groove and a conductive member accommodating groove.
  • the waterproof cover covers the conductive member accommodating groove.
  • the sliding channel is defined between the conductive member accommodating groove and the waterproof cover, and is communicated with the plunger guiding groove and the conductive member accommodating groove.
  • the pushing rod is mounted inside the sliding channel to control a conductive member of the keyboard switch to be turned on or turned off.
  • an oil storage groove is defined to be communicated with the sliding channel.
  • the waterproof assembly for keyboard switch further includes a gasket.
  • the gasket is arranged between the body element and the waterproof cover. The gasket is used to enhance compactness of a junction between the conductive member accommodating groove and the waterproof cover, thereby improving waterproof effect.
  • the gasket is a waterproof rubber gasket.
  • a convex protuberance is formed around a peripheral edge of the conductive member accommodating groove, and a positioning slot matching the protuberance is defined in the waterproof cover. The protuberance and the positioning slot are tightly engaged to improve water resistance.
  • the conductive member includes a movable plate and a static plate of the keyboard switch.
  • a waterproof colloid is coated at a junction between the body element and the waterproof cover.
  • the waterproof colloid is applied to build a firm connection between the body element and the waterproof cover, and at the same time, to get water resistance.
  • an ultrasonic welding layer is provided at a junction between the body element and the waterproof cover.
  • the ultrasonic welding layer is applied to seal the junction between the body element and the waterproof cover, so as to achieve a better waterproof effect.
  • the conductive member includes a receiving terminal and an emitting terminal disposed opposite to each other.
  • the sliding channel is communicated with the conductive member accommodating groove.
  • a first sliding groove is defined in communication with the conductive member accommodating groove.
  • a second sliding groove matching the first sliding groove is defined in the waterproof cover. The first sliding groove cooperates with the second sliding groove to constitute the sliding channel.
  • a keyboard including a plurality of keyboard switches in an array.
  • Each of the keyboard switches includes a waterproof assembly.
  • the waterproof assembly includes a body element, a waterproof cover, a sliding channel, and a pushing rod.
  • the body element defines a plunger guiding groove and a conductive member accommodating groove.
  • the waterproof cover covers the conductive member accommodating groove.
  • the sliding channel is defined between the conductive member accommodating groove and the waterproof cover, and is communicated with the plunger guiding groove and the conductive member accommodating groove.
  • the pushing rod is mounted inside the sliding channel to control a conductive member of the keyboard switch to be turned on or turned off.
  • Each of the keyboard switches includes a waterproof assembly.
  • the waterproof assembly includes a body element, a waterproof cover, a sliding channel, and a pushing rod.
  • the body element defines a plunger guiding groove and a conductive member accommodating groove.
  • the waterproof cover covers the conductive member accommodating groove.
  • the sliding channel is defined between the conductive member accommodating groove and the waterproof cover, and is communicated with the plunger guiding groove and the conductive member accommodating groove.
  • the pushing rod is mounted inside the sliding channel to control a conductive member of the keyboard switch to be turned on or turned off.
  • the body element can be applied for a base of the keyboard switch.
  • the plunger guiding groove is used to accommodate a switch plunger of the keyboard switch.
  • the conductive member accommodating groove is used to dispose a conductive member of the keyboard switch.
  • the sliding groove is defined on the conductive member accommodating groove or the waterproof cover, and the sliding groove is communicated with the plunger guiding groove and the conductive member accommodating groove.
  • the pushing rod is mounted inside of the sliding channel so as to control the conductive member to be turned on and off.
  • the waterproof cover is covered over the conductive member accommodating groove, to prevent exterior water falling into the conductive member accommodating groove. In order to prevent the exterior water falling into the conductive member accommodating groove down from the pushing rod, the sliding channel is provided to tightly cooperate with the pushing rod to achieve water resistance.
  • FIG. 1 is a schematic view of a waterproof assembly for keyboard switch in a first embodiment of the present disclosure
  • FIG. 2 is a decomposition diagram of the waterproof assembly for keyboard switch in FIG. 1 ;
  • FIG. 3 is a reference diagram in application of the waterproof assembly for keyboard switch in FIG. 1 ;
  • FIG. 4 is an enlarged diagram of region (A) shown in FIG. 3 ;
  • FIG. 5 is a decomposition diagram of a waterproof assembly for keyboard switch in a second embodiment of the present disclosure.
  • a waterproof assembly 10 adapted for a keyboard switch is provided.
  • the waterproof assembly 10 includes a body element 20 , a waterproof cover 30 , and a pushing rod 80 .
  • the concrete structure is illustrated as follows.
  • the body element 20 defines a plunger guiding groove 21 and a conductive member accommodating groove 22 .
  • the conductive member accommodating groove 22 is adapted to accommodate a conductive member of the keyboard switch, and is communicated with a first sliding groove 23 .
  • the first sliding groove 23 is communicated with the plunger guiding groove 21 and the conductive member accommodating groove 22 .
  • the first sliding groove 23 is communicated with a first oil storage groove 24 .
  • a convex protuberance 25 is formed around a peripheral edge of the conductive member accommodating groove 22 .
  • a water outlet 26 communicating with the plunger guiding groove 21 is defined at a bottom portion of the plunger guiding groove 21 . In detail, one water outlet or plural water outlets may be arranged.
  • the waterproof cover 30 is mounted on the body element 20 and covers the conductive member accommodating groove 22 .
  • a sliding channel 40 is defined between the waterproof cover 30 and the conductive member accommodating groove 22 .
  • a second sliding groove 31 matching the first sliding groove 23 is defined in the waterproof cover 30 .
  • a second oil storage groove 32 matching the first oil storage groove 24 is defined communicating the second sliding groove 31 .
  • the first sliding groove 23 cooperates with the second sliding groove 31 to constitute the aforementioned sliding channel 40 .
  • the first oil storage groove 24 combines with the second oil storage groove 32 to constitute a waterproof oil storage tank 41 circling around outside of the sliding channel 40 .
  • a positioning slot 35 matching the protuberance 25 is defined in the waterproof cover 30 .
  • the pushing rod 80 is disposed inside the sliding channel 40 , so as to control the conductive member of the keyboard switch to be turned on and turned off.
  • the conductive member includes a movable plate 90 and a static plate of the keyboard switch.
  • the conductive member may include a receiving terminal and an emitting terminal disposed opposite to each other.
  • an ultrasonic welding layer is arranged at a junction between the body element 20 and the waterproof cover 30 .
  • a waterproof colloid is coated at the junction between the body element 20 and the waterproof cover 30 .
  • the body element 20 can be used as a base of the keyboard switch.
  • a top cover 70 is mounted on the body element 20 and overlays the waterproof cover 30 .
  • the plunger guiding groove 21 is used to receive a switch plunger 60 of the keyboard switch.
  • the conductive member accommodating groove 22 is applied to receive the movable plate 90 and the static plate of the keyboard switch, and the pushing rod 80 of the keyboard switch is mounted in the sliding channel 40 , and is capable of sticking into the conductive member accommodating groove 22 .
  • One end portion of the pushing rod 80 is restricted in the conductive member accommodating groove 22 , and the other portion thereof can reciprocate along the sliding channel 40 , thereby the switch plunger 60 of the keyboard switch can interact with and push the pushing rod 80 during operation, thereby triggering the movable plate 90 and the static plate.
  • the waterproof cover 30 covers the conductive member accommodating groove 22 , so as to prevent exterior water falling into the conductive member accommodating groove 22 .
  • the sliding channel 40 and the pushing rod 80 are tightly fitted to prevent water permeating into the conductive member accommodating groove 22 from the pushing rod 80 .
  • the waterproof oil storage tank 41 circling around the sliding channel 40 is set around the peripheral edge of the sliding channel 40 , and the waterproof oil storage tank 41 is filled with waterproof oil and tightly seals with the pushing rod 80 to provide a waterproof function.
  • the protuberance 25 is tightly squeezed in the positioning slot 35 to enhance waterproof effect.
  • the water outlet 26 is set to guiding water flowing into the plunger guiding groove 21 out from the body element 20 .
  • the ultrasonic welding layer can seal the junction between the body element 20 and waterproof cover 30 , thereby achieving a favorable water resistance.
  • the waterproof colloid is adopted to build a firm connection between the body element 20 and the waterproof cover 30 , and at the same time, to achieve water proof effect.
  • the present invention provides an alternative waterproof assembly 10 a adapted for keyboard switch.
  • the waterproof assembly 10 a further includes a gasket 50 arranged between the conductive member accommodating groove 22 and the waterproof cover 30 .
  • the gasket 50 can be a waterproof rubber gasket.
  • the gasket 50 is adapted to build a tight connection between the body element 20 and the waterproof cover 30 , thereby improving water resistance.
  • Other configurations are similar to corresponding structures described in the first embodiment, and effective results can be achieved as they are in the first embodiment.

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Switch Cases, Indication, And Locking (AREA)
US16/205,123 2016-05-30 2018-11-29 Waterproof assembly for keyboard switch, keyboard and electronic apparatus Active US10650989B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201610375789.8 2016-05-30
CN201610375789.8A CN107017109B (zh) 2016-05-30 2016-05-30 键盘开关的防水结构
CN201610375789 2016-05-30
PCT/CN2017/083578 WO2017206674A1 (zh) 2016-05-30 2017-05-09 键盘开关的防水结构

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/083578 Continuation WO2017206674A1 (zh) 2016-05-30 2017-05-09 键盘开关的防水结构

Publications (2)

Publication Number Publication Date
US20190096608A1 US20190096608A1 (en) 2019-03-28
US10650989B2 true US10650989B2 (en) 2020-05-12

Family

ID=59438996

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/205,123 Active US10650989B2 (en) 2016-05-30 2018-11-29 Waterproof assembly for keyboard switch, keyboard and electronic apparatus

Country Status (6)

Country Link
US (1) US10650989B2 (zh)
JP (1) JP6639703B2 (zh)
KR (1) KR200491458Y1 (zh)
CN (1) CN107017109B (zh)
DE (1) DE212017000152U1 (zh)
WO (1) WO2017206674A1 (zh)

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339634A (en) * 1980-02-07 1982-07-13 Obisphere Corporation Wilmington, Succursale De Collonge-Bellerive Keyboard
US4839483A (en) * 1986-10-22 1989-06-13 Conair Corporation Modular watertight switch for use in personal care appliances
US5260532A (en) * 1991-11-01 1993-11-09 United Technologies Automotive, Inc. Sealed housing for a remote switching device
US5300742A (en) * 1992-09-23 1994-04-05 Huang Hai Long Waterproof structure for computer key switch
US20020063149A1 (en) 2000-11-29 2002-05-30 John Jun Waterproof keyboard
US20060077777A1 (en) * 2004-09-10 2006-04-13 Lance Fried Water and shock resistant music player
US7282657B2 (en) * 2005-03-18 2007-10-16 Pollmann Austria Ohg Assembly having an electric switching function as well as a method of producing such an assembly
US7420136B2 (en) * 2006-09-08 2008-09-02 Radio Systems Corporation Compression ring button assembly
CN201348963Y (zh) 2008-12-24 2009-11-18 精模电子科技（深圳）有限公司 键盘的防水结构
US20110005908A1 (en) * 2009-07-13 2011-01-13 Yung-Feng Lin Key mechanism with waterproofing function and related electronic device
CN102562806A (zh) 2010-12-20 2012-07-11 江苏省电力公司宝应县供电公司 一种隔离开关传动轴的轴套
CN203339029U (zh) 2013-04-28 2013-12-11 东莞市凯华电子有限公司 中心全彩发光的键盘开关
CN103745885A (zh) 2014-01-10 2014-04-23 柳州杰诺瑞汽车电器系统制造有限公司 带防水结构的起动机电磁开关
US8748766B2 (en) * 2011-12-26 2014-06-10 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Button with water and dust proof structure
CN204390951U (zh) 2015-02-06 2015-06-10 东莞市凯华电子有限公司 顶杆式键盘开关
CN204464134U (zh) 2015-01-13 2015-07-08 李钊由 一种具有防水防尘功能的新型机械键盘
CN204991570U (zh) 2015-10-10 2016-01-20 东莞市凯华电子有限公司 一种防尘键盘开关
CN105355496A (zh) 2015-11-24 2016-02-24 东莞市高特电子有限公司 一种基于霍尔原理的led灯机械键盘开关
CN205828231U (zh) 2016-05-30 2016-12-21 东莞市凯华电子有限公司 键盘开关的防水结构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4008222B2 (ja) * 2001-10-11 2007-11-14 ナブテスコ株式会社 接触型起動スイッチ
US20150340176A1 (en) * 2012-04-12 2015-11-26 Chang-Lung Wu Keyboard having touch mode and character mode and method for operating the same
CN104810181A (zh) * 2015-05-18 2015-07-29 江苏艾倍科科技股份有限公司 一种防水键帽结构
CN205050718U (zh) * 2015-08-27 2016-02-24 东莞市凯华电子有限公司 带x架结构的键盘开关

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339634A (en) * 1980-02-07 1982-07-13 Obisphere Corporation Wilmington, Succursale De Collonge-Bellerive Keyboard
US4839483A (en) * 1986-10-22 1989-06-13 Conair Corporation Modular watertight switch for use in personal care appliances
US5260532A (en) * 1991-11-01 1993-11-09 United Technologies Automotive, Inc. Sealed housing for a remote switching device
US5300742A (en) * 1992-09-23 1994-04-05 Huang Hai Long Waterproof structure for computer key switch
US20020063149A1 (en) 2000-11-29 2002-05-30 John Jun Waterproof keyboard
US6467683B2 (en) 2000-11-29 2002-10-22 Silitek Corporation Waterproof keyboard
US20060077777A1 (en) * 2004-09-10 2006-04-13 Lance Fried Water and shock resistant music player
US7282657B2 (en) * 2005-03-18 2007-10-16 Pollmann Austria Ohg Assembly having an electric switching function as well as a method of producing such an assembly
US7420136B2 (en) * 2006-09-08 2008-09-02 Radio Systems Corporation Compression ring button assembly
CN201348963Y (zh) 2008-12-24 2009-11-18 精模电子科技（深圳）有限公司 键盘的防水结构
US20110005908A1 (en) * 2009-07-13 2011-01-13 Yung-Feng Lin Key mechanism with waterproofing function and related electronic device
CN102562806A (zh) 2010-12-20 2012-07-11 江苏省电力公司宝应县供电公司 一种隔离开关传动轴的轴套
US8748766B2 (en) * 2011-12-26 2014-06-10 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Button with water and dust proof structure
CN203339029U (zh) 2013-04-28 2013-12-11 东莞市凯华电子有限公司 中心全彩发光的键盘开关
CN103745885A (zh) 2014-01-10 2014-04-23 柳州杰诺瑞汽车电器系统制造有限公司 带防水结构的起动机电磁开关
CN204464134U (zh) 2015-01-13 2015-07-08 李钊由 一种具有防水防尘功能的新型机械键盘
CN204390951U (zh) 2015-02-06 2015-06-10 东莞市凯华电子有限公司 顶杆式键盘开关
WO2016124088A1 (zh) 2015-02-06 2016-08-11 东莞市凯华电子有限公司 顶杆式键盘开关
CN204991570U (zh) 2015-10-10 2016-01-20 东莞市凯华电子有限公司 一种防尘键盘开关
CN105355496A (zh) 2015-11-24 2016-02-24 东莞市高特电子有限公司 一种基于霍尔原理的led灯机械键盘开关
US9646786B1 (en) 2015-11-24 2017-05-09 Dongguan Gaote Electronics Co., Ltd. Hall principle-based LED lit mechanical keyboard switch
US20170148594A1 (en) 2015-11-24 2017-05-25 Dongguan Gaote Electronics CO., LTD Hall Principle-based LED lit Mechanical Keyboard Switch
JP2017098219A (ja) 2015-11-24 2017-06-01 ▲東▼莞市高特▲電▼子有限公司Ｄｏｎｇｇｕａｎ Ｇａｏｔｅ Ｅｌｅｃｔｒｏｎｉｃｓ ＣＯ．，ＬＴＤ 機械キーボードスイッチ
CN205828231U (zh) 2016-05-30 2016-12-21 东莞市凯华电子有限公司 键盘开关的防水结构

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"International Search Report (Form PCT/ISA/210)", dated Jul. 28, 2017, with English translation thereof, pp. 1-6.
"Written Opinion (Form PCT/ISA/237)", dated Jul. 28, 2017, with English translation thereof, pp. 1-11.

Also Published As

Publication number Publication date
JP2019517708A (ja) 2019-06-24
JP6639703B2 (ja) 2020-02-05
KR20190000129U (ko) 2019-01-15
US20190096608A1 (en) 2019-03-28
DE212017000152U1 (de) 2019-01-03
CN107017109B (zh) 2019-08-06
KR200491458Y1 (ko) 2020-04-09
WO2017206674A1 (zh) 2017-12-07
CN107017109A (zh) 2017-08-04

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